East Africa, and Kenya in particular, was carefully chosen for two reasons. First, Kenya has a mobile phone network that makes it easy to transfer funds electronically to individuals and then for those individuals to get cash from the funds at local stores. I wish we had this in the West, but we don't because of banking regulations. Second, poorer households in certain communities tend to use natural roofing materials rather than aluminum, which makes it easy to target funding by satellite.
The UBI is a political football in the West. The Mincome experiment was cancelled because of a change in government. The potential utility benefits from a UBI are so great that it would be a shame to think that we have to wait for it to be politically palatable in the West before we can get any data on its effectiveness. Also, as far as poverty relief is concerned, money really does help.